The Commission argued that the American lobbyist was the "best candidate" for the job. That a group of 27 countries with one of the world's most sophisticated antitrust arsenals is unable to provide talent to rival the skills of Scott Morton is surprising, to say the least.
If the EU Commission proposed the appointment, then it's a safe bet the commission itself is captured/corrupt. Very corrupt, given how outrageous appointing a non-EU-citizen to a high-ranking EU political position is.